US99874A - Improvement in booms for vessels - Google Patents

Description

EUGENE e. eAILLA'c,

stent dtjjiw.

oE CUTLEE., MA1-NE.

Letters Patent No. 99,87 4, dated February 15, 187.0.

IMPROVEMENT IN BOMS FOR VESSELS.

The Schedule referred to in these Letters Patent and making part of the same To all whom it 'may concern Be it known that I, EUGENE G.' GAILLAC, of Outler, in the county of Washington, and State of Maine, have invented a new and valuable Improvement in Apparatus for Protect-ing Vessels Saddles and Booms from Chaing; and I do hereby declare that the follow- A ing is a full, clear, and exact description of the con- `dto., and consists mainly in the adaptation of small rollers to the under side of the jaws of the boom, in such a manner as to prevent chang on the saddle.

The letter A of the drawings designates a boom, having jaws a a and clapper. b.

C designates Athe mast, to which a saddle, d, is secured.

Upon the upper end of the saddle is fixed a semicircular metal plate'or track, n, which is traversed by the rollers'under the jaws.

Three rollers, z z, are generally employed, so ar` ranged that there will be one" under each arm of the jawsaud one in the centre, under and attached to the pivoted clapper l).

Each rolier'is pivoted between thecheeks t ot the plate on, and `these cheeks are formed suticientl y broad to insure the upright position of the rollers on the track.

yThe plate m is let into the counter'sunk wood, and

screwed firmly thereto.

According to the present practice the jaws of the boom rest immediately upon the saddle, whereby both saddleV and boom become worn in short time by the chang. l

My invention is designed to obviate this evil, and while I prefer the method above described ot' attaching the rollers, I do not desire to confine myself there-' to, for sometimes it might be necessary, on account of the delicacy ofthe jaws or for other reasons, to reverse Y the arrangement and attach the rollers to the saddle.

What I claim as my invention, anddesire to secure 1. The rollers z z herein described, arranged to operate between the jaws of a boom or gai' and the mast saddle, as specified.

2. In combination with the clapper b, the roller z,

secured'to its lower end, as and for the purposes specitied.

In testimony that I claim the above, I have her unto subscribed my name, in the presence of two witness'es.I

EUGENE G. GAILLAC.

Witnesses:

ISAAC WILDER', GEO. W. MCFApDEN.

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